研究目的
Investigating the application of economical and eco-friendly bio-carbon electrodes in highly efficient perovskite solar cells to reduce costs and improve stability.
研究成果
The study demonstrates that bio-carbon materials can serve as efficient and stable counter electrodes in PSCs, achieving a high PCE of 12.82%. The performance is influenced by the properties of the bio-carbons, including interfacial connection, work function, and crystallinity. This approach offers a low-cost and eco-friendly alternative to traditional materials, potentially accelerating the commercialization of PSCs.
研究不足
The study focuses on the application of bio-carbon materials in PSCs but does not explore the scalability of the fabrication process or the long-term environmental impact of using bio-carbons.
1：Experimental Design and Method Selection:
Four types of bio-carbon materials were prepared by carbonizing biomass and applied as counter electrodes in PSCs. The photovoltaic performance was evaluated based on interfacial connection, work function, sheet resistance, crystallinity, and morphology.
2：Sample Selection and Data Sources:
Biomass sources included corn stalk, peanut shell, phragmites australis, and bamboo chopsticks. The bio-carbons were characterized using XRD, TEM, Raman spectroscopy, and UPS.
3：List of Experimental Equipment and Materials:
Equipment included XRD-7000S, TEM Philips Tecnai G2 F30 S-TWIN, SEM FEI Nova NanoSEM 450, and a four-point probe resistivity measurement system. Materials included FTO, TiO2 paste, perovskite precursors, and bio-carbons.
4：Experimental Procedures and Operational Workflow:
Bio-carbons were prepared by carbonizing biomass, ball-milled, and applied as CEs in PSCs. The devices were fabricated and characterized under standard conditions.
5：Data Analysis Methods:
The performance of PSCs was analyzed using J-V curves, IPCE spectra, Nyquist plots, and PL spectra.
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Keithley 2460
2460
Keithley
J-V characteristics measurement
-
XRD-7000S
XRD-7000S
Shimadzu
X-ray diffraction analysis
-
SEM FEI Nova NanoSEM 450
Nova NanoSEM 450
FEI
Scanning electron microscopy
-
Raman spectrometer
JY LabRam HR800
JY
Raman spectroscopy
-
PL spectra measurement system
C5410
Hamamatsu
Photoluminescence spectra measurement
-
TEM Philips Tecnai G2 F30 S-TWIN
Tecnai G2 F30 S-TWIN
Philips
Transmission electron microscopy
-
Four-point probe resistivity measurement system
RTS-9
Four Probes Tech
Resistance measurement
-
Electrochemical workstation
Zennium
Zahner
Nyquist plot measurements
-
IPCE measurement system
PEC-S20
Peccell
Incident photon-to-electron conversion efficiency measurement
-
Solar simulator
Peccell-L15
Peccell
AM 1.5G 100 mW·cm-2 illumination
-
Contact-angle measurement system
OCAH200
Dataphysics Instruments
Hydrophobic properties measurement
-
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